Leer, Inc. 206 Leer Street, P.O. Box 206 New Lisbon, WI 53950 1 … · 2020. 11. 18. · 1070005...
Transcript of Leer, Inc. 206 Leer Street, P.O. Box 206 New Lisbon, WI 53950 1 … · 2020. 11. 18. · 1070005...
1070005 11-2020
Leer, Inc. 206 Leer Street, P.O. Box 206
New Lisbon, WI 53950 1-800-766-5337
www.leerinc.com
ICE MERCHANDISER INSTALLATION, OPERATION, AND SERVICE
MANUAL
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer (For more information go to www.p65warnings.ca.gov)
Table of Contents
Start-UP .............................................................................................................................................................................................. 3
Storage and Transportation: ........................................................................................................................................................... 3
Packaging: ..................................................................................................................................................................................... 3
Installation .......................................................................................................................................................................................... 3
Placing Merchandiser: ................................................................................................................................................................... 3
NSF Installation: ............................................................................................................................................................................ 3
Merchandiser Leveling: ................................................................................................................................................................. 3
Electrical: ....................................................................................................................................................................................... 4
Condensate Evaporator: ................................................................................................................................................................. 4
Operation ............................................................................................................................................................................................ 5
Temperature Controls: ................................................................................................................................................................... 5
Mechanical Controls Thermostat: .................................................................................................................................................. 5
Mechanical Controls: Defrost Timer: ............................................................................................................................................ 5
Electronic Controls: Digital Display: ............................................................................................................................................ 5
Operating Mode Display: .............................................................................................................................................................. 6
Electronic Control Operation:........................................................................................................................................................ 6
Cold Wall Control: ........................................................................................................................................................................ 6
Auto-Defrost Control:.................................................................................................................................................................... 6
Electronic Control Startup: ............................................................................................................................................................ 6
Possible Displayed Alarm Codes: ................................................................................................................................................. 7
Loading Ice: ................................................................................................................................................................................... 7
Maintenance ....................................................................................................................................................................................... 7
Cleaning the Merchandiser: ........................................................................................................................................................... 7
Cleaning Door Gaskets: ................................................................................................................................................................. 8
Cleaning Condenser Coils: ............................................................................................................................................................ 8
Defrosting the Merchandiser: ........................................................................................................................................................ 8
Cold Wall Defrost Methods: .......................................................................................................................................................... 8
Auto-Defrost Methods: .................................................................................................................................................................. 9
Auto-Defrost Mechanical Timer: .................................................................................................................................................. 9
Auto-Defrost Electronic Control: .................................................................................................................................................. 9
Glass Door Models and Maintenance: ......................................................................................................................................... 10
Solid Door Models and Maintenance .......................................................................................................................................... 10
Decaling Recommendations Solid Door: .................................................................................................................................... 10
Door Gaskets and Hardware: ....................................................................................................................................................... 10
Electronic Control- CW and AD Wiring Diagram ........................................................................................................................... 13
Mechanical Control- CW and AD Wiring Diagram ......................................................................................................................... 13
Replacement Parts List ..................................................................................................................................................................... 14
Warranty ........................................................................................................................................................................................... 16
3
Start-UP
Storage and Transportation: The merchandiser should be stored and
transported in an upright position. It is not
recommended to tilt the merchandiser. If the
merchandiser is tilted beyond 45° of vertical, oil
may drain from the compressor causing premature
failure.
Do Not stack merchandisers on top of one another
due to risk of falling. Falling merchandisers could
result in damaged units or serious injuries. It is
recommended to use warehouse racking design to
accommodate the weight of the merchandisers
and prevent falling.
Packaging: Prior to installation, the outer packaging on the
merchandiser will need to be removed. The
majority of the packaging materials can be
recycled and disposed of in an environmentally
friendly manner. The wooden skid is secured to
the underside of merchandiser with hex-headed
screws and will require the use of a 3/8" hex-
socket for screw removal. Glass door models are
shipped with door support brackets installed
between the merchandiser's door opening(s) and
the bottom rail of the door. These support brackets
need to be removed prior to operation of the
merchandiser. Failure to remove the brackets will
affect the seal of the door gasket to the cabinet
face.
Installation
Note: Leer Merchandisers are commercial in
design and not intended for residential use.
Placing Merchandiser: When placing the
merchandiser, allow a minimum of 3 inches of air
space from all surfaces of the cabinet and any
surrounding structures. This air space allows for
air flow over the surface of the cabinet, thus
reducing condensation and aid in the drying of
these surfaces. On outdoor auto-defrost models,
the 3-inch space behind the merchandiser will also
help ensure that the evaporator drain tube, which
exits the back wall, is not being restricted during
the defrost cycle.
NSF Installation: Most merchandisers can be special ordered with
NSF certification. NSF merchandisers are
supplied with leveling kits packaged inside. These
kits are required by NSF to maintain a 6-inch
clearance from bottom of unit to the ground. This
kit must be installed on location. To install, use a
proper lifting device to raise the merchandiser
from the ground. Allow enough room to get the
full kit under the skid plate. DO NOT TIP THE
MERCHANDISER beyond 45° of vertical as
mentioned in the Storage and Transportation
section of this manual. Insert the stem of the
leveling kit into the bottom of the skid plate.
Lower the merchandiser into position while
maintaining the 6-inch required NSF clearance.
Merchandiser Leveling: The merchandiser installation location should
have a solid, level base. If the merchandiser is
exhibiting a slight forward lean, the front of the
cabinet should be blocked to bring the cabinet to a
level position. On auto-defrost models, a forward
lean may negatively affect proper draining of the
unit cooler assembly during the defrost cycle.
Leveling kits are available for use on most cabinet
models. Contact the Merchandiser Sales
Department for more information.
Full leveling kit
shown, inserted into
the skid plate of the
merchandiser.
4
Electrical: Warning! Component parts shall only be
replaced with like components. Electrical and
servicing should be done by licensed
professionals. Disconnect power before
performing service. Certain models contain
multiple voltages. Leer does not assume
responsibility for any damage to people or
things deriving from violation, improper use or
in any case not in compliance with Leer’s
instructions.
Figure 1: Grounding
The Merchandiser must be plugged into a
dedicated and properly grounded 115V/60hz/1Ph
circuit with a circuit fuse or breaker rated at a 15
or 20 Amps depending on model. The electrical
service connections to the merchandiser must be
compliant with national electric code and local
codes that may apply. DO NOT use extension
cords. The 20 Amp plug configuration, that some
models come with, should NOT be removed.
Some models are equipped with a main power
switch. If so equipped, make sure the switch is in
the OFF position before plugging the
merchandiser into the lower receptacle of the
electrical outlet.
WARNING: Operating more than one appliance
on the same circuit may result in voltage
fluctuations when both appliances are operating
simultaneously. This voltage fluctuation may
cause the circuit breaker to trip and/or may cause
voltage drops. As a result, the power to the
merchandiser may be interrupted and freezing
performance can be adversely affected which may
cause equipment damage and /or product loss.
Voltage supply to the merchandiser must not vary
more than ±10 percent of the normal 115V.
Information regarding the electrical voltage and
frequency being supplied to the merchandiser can
be found on the merchandiser’s serial data plate
typically located at the upper left corner of the
merchandiser’s interior. Information regarding the
maximum fuse/circuit breaker size required for
the specific model is available from the
condensing unit data plate.
Condensate Evaporator: Indoor auto-defrost
models are supplied with a condensate evaporator
heater assembly which is packaged with
instructions and shipped inside the merchandiser.
It will require simple installation by the consumer
(see Figure 2). A separate copy of this instruction
sheet is supplied with the condensate evaporator
assembly. The condensate evaporator assembly
contains a drip pan to collect water generated by
the merchandiser’s defrost cycle and a heat
element to evaporate the water. Once energized,
the heat element in the condensate evaporator
assembly is continuously generating heat. The
merchandiser is to be placed so that there is at
least 1 inch of air space between the back surface
of the condensate evaporator housing and any
wall surface behind the cabinet which allows for
heat dissipation away from the surface of the wall.
The main power cord should also be routed to
avoid pinching.
Note: Do not operate an indoor auto-defrost
merchandiser without having a condensate
evaporator assembly installed under the
evaporator drain tube exiting the back wall of the
cabinet. Failure to install this assembly will result
in water draining directly onto the floor during the
defrost cycle. This may result in water damage to
the floor and create a hazardous slip condition in
the area surrounding the merchandiser.
5
Figure 2: Condensate Evaporator Installation
Operation
Temperature Controls: Merchandisers are
currently available with either mechanical
controls (optional) or an electronic control
(standard).
Mechanical Controls Thermostat: The compressor is controlled by the classic
thermostat where the engagement and
disengagement of the thermostat is controlled by
the expansion and contraction of gas within a
sensing tube. Merchandisers with mechanical
thermostats are factory set to operate at a cut-out
temperature of 18° F +/-2°. The thermostat has an
adjustment knob that allows a limited adjustment
range. Rotating the adjustment knob clockwise
will lower the cabinet temperature while a
counterclockwise rotation will raise the cabinet
temperature. Rotating the adjustment knob fully
counter-clockwise will shut off power completely
to the merchandiser’s condensing unit. The
thermostat has a pre-set differential of 7° F, which
is not adjustable.
On cold wall (CW) cabinet models, the thermostat
is located on top of the cabinet under the
condensing unit cover housing. The sensor tube
inserts through the ceiling of the cabinet and exits
near the interior back wall.
On automatic defrost (AD) cabinet models, the
thermostat is housed inside the unit cooler
assembly that is mounted to the interior ceiling of
the cabinet.
Mechanical Controls: Defrost Timer: The defrost timer is located under the condensing
unit housing. The timer will engage the
merchandisers defrost cycle once every 4 hours
for a duration of 16 minutes. The standard timer,
supplied with most merchandisers, is pre-set and
non-adjustable. The timer may be manually
advanced into defrost by rotating the advancement
knob in a clockwise direction. The knob is located
on the rear of the timer casing. Manual
advancement into the defrost mode will re-set the
next controlled defrost cycle to take place in 4
hours.
The automatic defrost function is available on
cabinet models designated as “auto-defrost” (AD).
The cold wall (CW) cabinet models do not have
an electronically controlled defrost and require
manual de-icing of the cabinet’s interior walls.
Electronic Controls: Digital Display:
Manual
Defrost Key
Defrost Enabled Icon –
Melting
Snowflake
Compressor
Enabled Icon
Set
K
ey
Temperature & Settings
6
Operating Mode Display: • Snowflake “ON” – compressor enabled in
run cycle; control displays current cabinet
temperature.
• Snowflake “Flashing” – anti short cycle
delay enabled to protect the compressor
from trying to start too frequently.
• Melting Snowflake “ON” – defrost in
progress, control displays the letters “DE”
• To view the control’s programmed “Set
Point” (cut-out temperature): press and
release the “Set Key.”
• To initiate a manual defrost cycle: press
and hold the “Manual Defrost Key” for
more than 2 seconds.
Note: Manual Defrost will not initiate unless the
unit is at standard operating temperatures.
Electronic Control Operation: The electronic control combines the functions of
both the mechanical thermostat and defrost timer
into a single control. The control also offers the
consumer the capability of monitoring the
operational status of the merchandiser via the icon
and digital temperature display (located on the
face of the control). The controller has been
programmed by Leer to operate the merchandiser
within the design parameters of the refrigeration
system. The set-point (cut-out) for these controls
has programmed parameters for 16°F, with a
differential of 8°F. Should the user desire to alter
the Set-Point, the new set-points should not
exceed +/- 4° of the original factory setting. Do
not alter any of the programming parameters in
the controls without first consulting with Leer.
There are two separate electronic controls
available based upon the cabinet type; Cold Wall
or Auto-Defrost.
Cold Wall Control: The CW control is located
under the condensing unit housing. The control
has a single thermal-couple probe wire used to
monitor the air temperature inside the cabinet.
The probe enters through the top of the cabinet
and is secured at a specific location where the
back wall and ceiling of the interior meet. The
control will display the air temperature in the
cabinet at the probe’s location. Although the
control has a Manual Defrost Key, this action is
non-functional on the CW cabinet models (see the
defrost instructions for CW cabinet models in the
“MAINTENANCE” section of this manual).
Auto-Defrost Control: The AD control is also
located under the condensing unit cover and
contains two thermal-couple probe wires. Both
probe wires are routed through the cabinet’s
suction line hole and into the unit cooler
assembly, which is mounted to the interior ceiling
of the cabinet. The Red Air Sensing Probe (“P1”)
routes through the unit cooler and has its’ sensing
bulb secured to the outer, left-hand wall of the
unit cooler. Probe “P1” monitors the air
temperature in the merchandiser at that location.
During the normal operation of the control, the
digital display will show the cabinet temperature
at the probe “P1” location. The Black Probe “P2”
is inserted into the finned section of the
evaporator coil, near the top of the unit cooler
assembly. This probe monitors the temperature of
the evaporator coil during the defrost cycle.
Electronic Control Startup: Turn the switch
if equipped into the ON position. After a 2-
minute delay, the compressor and the
condenser fan should start. The evaporator fan
motors and the light fixture will operate
immediately when power is applied. The
condensing unit will continue to run until the air
temperature in the cabinet reaches +16°F.
Note: If a defrost is required upon startup the
controller will enter defrost mode after the 2-
minute delay. Normal operation will resume upon
defrost termination and a short drip time.
7
Possible Displayed Alarm Codes:
“P1” – Air Probe failure: The control will
override the “P1” functions and cycle the
compressor at 5-minute intervals, until the probe
fault can be corrected.
“P2” – Evaporator Probe failure: The control will
override the “P2” function and operate with a
timed defrost cycle, until the probe fault can be
corrected.
“HA” – Maximum Temperature Alarm: The
cabinet air temperature has exceeded programmed
temperature for a period exceeding 15 minutes.
The alarm will continue to display until the
cabinet temperature drops below maximum levels.
“LA” – Minimum Temperature Alarm: The
cabinet air temperature has dropped below the
programmed minimum. This alarm will continue
to display until the cabinet temperature rises
above the minimum level.
Note: Should a “P1” or “P2” alarm occur, check
the probe wire connections to the control prior to
replacing the probe wire.
For more information regarding the electronic
control program and instructions, please contact:
Leer, Inc. Merchandiser Division Customer
Service. Phone: 800-766-5337 or our web-site at
https://www.leerinc.com
Loading Ice: The merchandiser should be pre-
chilled prior to loading with ice. Pre-chilling will
aid the merchandiser in reaching storage
temperature at a faster rate once loaded and
reduce the risk of melting product. Do not over
fill the merchandiser with ice!
Cold Wall Models: If the bagged ice blocks off air
flow from the front of the cabinet to the control’s
air probe, the control may not respond quickly
enough to maintain proper cabinet temperature.
Allow a minimum of 6 inches clearance between
the top of the ice stack and the ceiling of the
cabinet interior. This distance will allow a
pathway for warmer air entering the cabinet
during door openings to migrate to the sensing
bulb on the probe.
Auto-Defrost Models: Avoid stacking ice above
the top edge of the air ducts that are installed on
the walls of the cabinet interior. Blocking off
these air ducts may restrict the even distribution
of cold air throughout the cabinet, this may result
in warm spots developing within the cabinet.
Also, do not stack ice high enough to block off the
evaporator fans in the unit cooler assembly. The
evaporator fans are intended to pull warm air
entering the cabinet into the unit cooler and then
push that warm air across the surface of the
evaporator coil. This process removes the heat
prior to distributing the air into the cabinet.
Maintenance Note: Component parts shall only be replaced
with like components. Maintenance and repair of
the electrical and refrigeration systems should
only be done by trained and qualified personnel.
Disconnect power before performing service.
Certain models may contain multiple voltages.
Leer does not assume responsibility for any
damage to people or things deriving from
violation, improper use, or in any case not in
compliance with Leer’s instructions.
Cleaning the Merchandiser: The
merchandiser should be cleaned annually. In
corrosive environments such as coastal regions
and areas where deicing chemicals and road salts
are used, more frequent cleaning is recommended.
The exterior of the merchandiser can typically be
cleaned with the use of detergents dilluted in
warm water followed with a tap water rinse. The
exterior paint is capable of withstanding the use of
polishing compounds and most solvents. If using
stronger cleaning agents, they should be tested on
a small, inconspicuous areas prior to application
8
onto visible surfaces of the merchandiser. If
cleaning the interior of the merchandiser, the use
of detergents with strong odors (i.e. citrus based
cleaners, abrasive cleaners containing chlorine
bleach, and any form of solvent based cleaners)
are not reccommended. They may leave
objectionable odors inside the cabinet which may
be absorbed by the ice being stored in the
merchandiser.
Cleaning Door Gaskets: Door gaskets may
mildew and stiffen over time. The gasket is made
of a soft, flexible rubber-like material that can be
cleaned using most kitchen and bath cleaners
designed for mildew removal. Review
manufacturer information and instructions on any
cleaning agent prior to use to determine the
cleaner’s compatability with the surface being
cleaned.
Cleaning Condenser Coils: It is recommended to inspect and clean the
condenser coil and fan blades every 3 months.
There are a variety of methods available for
cleaning the condenser coils. Keep in mind that
the debris is being drawn into the coil by the
condenser fan and the debris should be removed
in the opposite direction.
• The simplest and preferred method would
involve the use of a vacuum cleaner to suck
the debris out of the coil from the outside
surface.
• Another method is using compressed air to
blow dust from the coil. The debris should be
blown out from the inside surface of the coil.
WARNING: When using compressed air, there
may be a cloud of dust released into the air
surrounding the machine.
It is recommended that the service person wear
proper protective equipment (i.e. safety glasses
and a dust mask) when performing coil cleanings.
Note: DO NOT use any type of filter media in
front of the condenser coil to trap dust. Filter
testing has proven to create enough restriction of
air flow to reduce the efficiency of the coil’s heat
exchange.
Defrosting the Merchandiser: The Auto Defrost merchandiser is designed to be self-
defrosting. The heat generated by the defrost heater
element will melt the ice build-up on the evaporator
coil and the resulting water will drain through a tube
out of the back wall of the machine.
It is recommended to check the operation and
condition of the evaporator coil and for signs of
excessive ice buildup every 3 months
The means and methods of the ice removal are
dependent upon whether the merchandiser is a Cold
Wall model or an Auto-Defrost model.
Cold Wall Defrost Methods: The evaporator
tubing for the cold wall cabinet models are located
within the walls of the cabinet. After the cold wall
merchandiser is energized, a visual inspection of the
cabinet’s interior will reveal a serpentine frost pattern
developing on the ceiling and walls. This frost pattern
represents the configuration of the evaporator tubing
as it’s attached to the inside surface of the cabinet. As
humidity enters the cabinet, it will collect and
accumulate along this frost-line pattern. As the frost-
line expands and builds in thickness, it will slow the
heat transfer between the cabinet walls and the
evaporator tubing. The cold wall cabinet models do
not have the design capability to self-defrost. In order
to defrost the cold wall models, product will need to be
emptied from the cabinet and the power to the cabinet
disconnected. Defrosting requires the entire interior
surface of the cabinet to be warmed above freezing in
order to melt and remove the build-up of ice from the
interior surfaces.
Power to the merchandiser can be turned off by merely
unplugging the cabinet from its power source. If the
merchandiser is equipped with a mechanical
thermostat, power can also be turned off by rotating
the temperature adjustment knob to its full
counterclockwise position. After the defrost operation
is complete, return the knob to its normal position to
re-energize the condensing unit. If the cold wall
cabinet has an electronic control, power can also be
turned off by use of the ON/OFF toggle switch located
on the control box of certain cabinet models. If the
toggle switch is not present on the control box, the
only means of disconnecting power is to unplug the
main power cord at the power source. Although the
electronic control on the CW merchandiser has a
defrost key on its display face, this feature does not
function with the CW cabinet design and will not
switch off power if pressed.
With the merchandiser de-energized, the defrost
process can be expedited with the addition of hot air
9
being forced through the cabinet’s door opening(s). As
the ice build-up softens, a plastic ice scraper may be
utilized to aid in the removal of ice from interior of the
cabinet. If possible, avoid the use of metal ice
scrapers, ice picks, or hammers as these tools may
inadvertently penetrate through the wall of the cabinet,
puncture the evaporator tube, and cause irreparable
damage.
A floor drain is present in most merchandiser models.
For outdoor models, the floor drain plug can be
removed to allow water drainage. If draining to the
ground is not desirable or if the merchandiser is
located indoors, the water may be removed with the
use of a wet-vac and disposed of. It is suggested that
some of the time allocated to defrost the cold wall
cabinet may be utilized for the cleaning of the
condenser coil as well as inspecting the condition of
wiring insulation, door gaskets, and spring-loaded
hinges.
Auto-Defrost Methods: Auto-Defrost models
are equipped to be self-defrosting and enter defrost
mode once every four hours automatically. During the
defrost cycle, the power to the refrigeration system
will be automatically re-directed to the defrost circuit.
This will shut down power to the condensing unit,
evaporator fan motors and also send power to a heat
element that is attached to the surface of the
evaporator coil. The heat generated by the element will
melt the ice build-up on the evaporator coil and the
resulting melt water will drain through a tube out of
the back wall of the merchandiser.
On outdoor cabinet models, the melt water will exit
the drain tube directly to the ground.
On indoor cabinet models, the consumer needs to
install the condensate evaporator heater assembly
(described in the Installation section of this manual)
onto the exterior back wall of the cabinet. The melt
water from the defrost cycle will drain into a catch pan
where it will then be heated to the point of
evaporation. The function of the condensate
evaporator’s heat element should be checked routinely.
Failure of the element could result in an over-flow
condition for the assembly’s drain pan. A simple
check of the heater would be a touch test of the surface
temperature of the assembly’s housing. The
condensate evaporator’s heat element is energized
continuously so the surface of the housing should
always be hot to the touch. If testing the heat element
with a meter, the element can be unplugged from its’
power source and a resistance reading can be taken
through the plug’s bladed terminals. The condensate
heater is rated to generate 125 watts of power, which
translates to approximately 106 ohms of resistance.
Auto-Defrost Mechanical Timer: The AD
merchandiser may come equipped with a mechanical
timer (as described in the Operation section of this
manual). The timer is factory set for a 16 minute
defrost cycle to occur at 4-hour intervals. During its’
run-cycle, the timer supplies power to the thermostat,
condensing unit, and evaporator fan motors. During
the defrost cycle, the timer switches power from the
run-circuit to the defrost-circuit and energizes the
defrost heater. The AD mechanical timer may be
manually advanced to a defrost mode by rotating the
advancement knob (located on the back of the timer)
in a clockwise direction until the defrost switch
engages. The advancement knob rotates in a clockwise
direction only.
The mechanical defrost circuit is equipped with a
defrost termination switch and is attached to one of the
evaporator coil tubes (located inside the Unit Cooler
Assembly). This switch senses temperature and will
cut power to the defrost heat element should the
temperature at the surface of the switch reach 70° F.
This switch terminates power to the heat element and
will not end the timed defrost cycle. Once the unit has
returned to run mode, the termination switch will re-
set when the temperature at its’ surface reaches 30° F.
Auto-Defrost Electronic Control: For
Merchandisers with an electronic control (as described
in the OPERATION section of this manual). The timer
is factory set for a 24 minute defrost cycle to occur at
4-hour intervals. Like the mechanical timer, the
electronic control will switch power from run mode
(condensing unit and evaporator fans) to defrost mode
(defrost heat element). Whereas the mechanical timer
operates strictly on a timed cycle, the duration of the
electronic control’s defrost cycle is controlled by the
temperature at the sensor probe “P2.” If the
temperature at this probe reaches 60°F prior to the 24-
minute timed cycle ending, the control will override
the timed cycle and immediately switch power from
the defrost mode to a drip time then standard run
mode. If temperature is not reached at probe “P2,” the
defrost cycle will continue for the entire 24- minute
programmed cycle prior to returning to run mode.
Energizing the defrost circuit in the electronic control
can be verified with the illumination of the “melting
snowflake” and the letters “DE” appearing on the
control’s display.
The electronic defrost circuit is equipped with a
defrost termination safety switch and is attached to one
of the evaporator coil tubes (located inside the Unit
Cooler Assembly). This switch senses temperature and
10
will cut power to the defrost heat element should the
temperature at the surface of the switch reach 100° F.
This switch only terminates power to the heat element
and will not end the timed / temperature defrost cycle.
Once the merchandiser has returned to run mode, the
termination safety switch will re-set when the
temperature at its’ surface reaches 70° F.
Warning! The defrost termination / safety switch
functions as a possible fire protection device. Do not
remove or by-pass the switch from the defrost circuit.
Note: If an electronic control AD unit loses power and
the temperature at “P2” is less than 60°F, it will
automatically enter a defrost cycle after a two-minute
delay.
Glass Door Models and Maintenance: The glass door is designed for use on indoor units or in
a controlled environment. It is constructed with a non-
heated, triple-pane glass-pack, with both inner and
outer panes being tempered. To avoid possible
condensation on the outer surface of the door, case
temperature in the merchandiser should be maintained
near its’ designed set-point of 16°F +/- 4° and ambient
dew-points around the cabinet location should be kept
below 60°F. Any household glass cleaner can be used
to clean the surface of the door. The glass door’s
gasket is a rubber bellows-style magnetic gasket. The
replacement gasket has an insert dart that installs into a
retaining slot in the door frame. The gasket can be
started in-place with light hand pressure, followed
with mild impact pressure applied with a dead-blow
hammer to ensure that the legs of the dart penetrate
fully into the slot. During replacement, always set the
gasket at the 4-corners of the door first to reduce
stretching the gasket. If the door gasket appears to be
in good condition but is failing to seal to the surface of
the cabinet, both the spring-load tension and
adjustment of the hinges should be checked.
A simple test of the spring-load tension is to open the
door just enough to insert two fingers between the
surface of the cabinet and the handle side of the door.
When the fingers are withdrawn, there should be
enough tension set on the hinge spring-loads to slowly
move the door to a closed position. If the door does
not move from this two-finger location, it’s likely that
either the spring-load requires re-tensioning or
lubrication. If the door moves part way from the two-
finger location but stops short of the cabinet, the
compression of the gasket along the hinge side of the
door should be checked. If there is too much
compression, the door will bind when closed and
should have its hinge-mount location checked and
possibly adjusted. Removing the hinge covers will
expose the spring-loads for tension adjustment or
removal. Removal of the spring-load will expose the
hinge-adjustment plate and mounting screws should
hinge adjustment be required. See Figure 3 for
instruction regarding spring-load installation and
adjustment.
Solid Door Models and Maintenance: Cabinets designed for outdoor use will have a metal
clad door that has been insulated with the same
urethane foam insulation as the cabinet. The exterior
metal is stucco embossed to hide minor impacts and is
coated with a fluorocarbon paint system. This paint
system was designed to withstand years of outdoor
exposure. For routine cleaning of the door’s exterior
surface, a mild detergent diluted in warm water should
be adequate.
Decaling Recommendations Solid Door: a) Use a decal with a 2-mil cast vinyl substrate.
Cast vinyl contains less memory than a
calendared vinyl or a polyester substrate and
will conform to the embossed surface with the
least amount of stress on the decal’s adhesive.
b) The decal’s adhesive should have a minimum
peel-strength rating of 80 oz. /inch.
c) Clean the surface of the door with isopropyl
alcohol and either air dry or dry with a clean
cloth.
d) Heating the surface of the door immediately
before applying the decal will aid the adhesive
bond of the decal. Never apply a decal to a
surface that is colder than 50° F.
e) Use a soft roller or plastic squeegee to apply
the decal and press it into the embossed
surface of the metal. Applying a small amount
of heat to the surface of the decal will aid in
this process.
Door Gaskets and Hardware: Routine inspection of the door gasket seal and the
action of the door’s hinges are recommended. If
damage has occurred to the gasket, it may allow
outside air to penetrate the cabinet and the gasket
should be replaced. The upright solid door (measuring
27” x 46”) utilizes the same hinge as the glass door.
The slant door (measuring 27” x 27”) utilizes a hinge
which is not spring-loaded. Both doors have the same
gasket profile, which has a barbed dart that inserts into
a slot opening in the surface of the door frame. See
Figure 4 for instructions on solid door gasket
replacement.
11
SPRING CARTRIDGE INSTALLATION INSTRUCTIONS
Figure 1 Figure 2 Figure 3
1) Install No. 220 Hinge with Adjustment Plate.
2) Assemble Spring Cartridge. Grease bushing end of pin prior to insertion into Stationary Bushing. Apply
a small amount of grease to the hinge-pin hole on the end of the Adjustment Collar Assembly. (Fig. 1).
3) Place Thrust Washer and Stationary Bushing over square pin in the Hinge and insert the Adjustment Pin
into the Adjustment Collar. Using the Adjustment Pin, compress the Spring and place the Adjustment Collar
over the round pin (Fig. 2).
4) Using the Adjustment Pin, turn the Adjustment Collar until the Pin contacts the Hinge. Then insert the
Stop Pin in hole of Adjustment Collar (Fig. 3). CAUTION: The Stop Pin must fully seat on Adjustment
Collar. Failure to do so may cause the Stop Pin to become dislodged. Inserting the Adjustment Pin more
than halfway thru the Adjustment Collar can cause partial push out of the Stop Pin. Repeat adjustment until
desired tension is reached. The maximum tension is 6 holes or approximately 1-1/4 turns.
5) Install Cover on Hinge.
WARNING: Use safety glasses when installing and adjusting spring tension.
Figure 3: Spring Install Instructions
12
Solid Door Magnetic Gasket Replacement Instructions:
1. Position solid door on a flat non-abrasive surface, exterior side down.
2. Remove old gasket by grasping firmly at the corner and pulling away from the door frame extrusion.
3. Inspect the extruded slot to insure there are no particles to interfere with the new gasket installation.
4. Align new gasket with door corners and use thumb to press into frame.
5. Start at one corner of the frame and begin pressing the new gasket into the slot. Using a non abrasive
tool such as a hammer head works well for this application. Apply downward pressure while moving
along the permeter of the frame. Excessive pressure may strech the gasket and cause bulging at the
corners.
Gasket Detail View Step 4
Step 5
Figure 4: Door Gasket Install
13
Electronic Control- CW and AD Wiring Diagram
Mechanical Control- CW and AD Wiring Diagram
14
Replacement Parts List ITEM DESCRIPTION PART # ITEM DESCRIPTION PART #
1. Condensing Unit: Provide
condensing unit model number
2. Thermostat - Mechanical 1328046
Timer - Mechanical 1328023
Electronic Control – CW XRO2 1328034
Electronic Control – AD XRO4 1328035
Sensor Probe Evap (Black) 1328055
Sensor Probe Room (Red) 1328056
Power Harness w/o Switch Terminal 1270062
Power Harness with Switch Terminal 1270070
Toggle Switch (for PN 1270070) 1213042
3. Unit Cooler Evaporator Parts:
Fan Guard 1396023
Fan Blade 1392008
Fan Mounting Bracket 5120140
Fan Motor 1393029
Mechanical Defrost Termination
Switch 30/70F 1328003
Electronic Defrost Safety
Switch 70/100F 1328004
LCL 120 Defrost Heater – 400W 1261007
LCL 170 Defrost Heater – 600W 1261008
LCL 190/280 Defrost Heater – 800W 1261009
4. Full Top Enclosure: Provide the
merchandiser model number.
5. "ICE" Decal for full top (Red) 1070076
“ICE” Decal for full top (Blue) 1070069
6. Cover w/o decal 5848004-5
Cover w/ decal 5848000-5
7. "Packaged Ice" Decal. 1070068
8. J-Bolt for all solid doors 1160008
9. Door Hasp for all solid doors 5120001
10. Door Handle for all solid doors 1914001
11. Check Chain 1915001
12. Door, Stucco Charcoal Gray 5591027
27" x 27"with gasket
13. Door Gasket for 1030016
27" x 27" solid door
14. Hinge with cover for 27" x 27" solid
door
1911019
15. Door, Stucco Charcoal Gray 5591035
27" x 46" with gasket
16. Door Gasket for 1030014
27" x 46" solid door
17. Glass Door, 28" x 47" Silver Frame
1412012
18. Door Gasket for 28" x 47" glass door
1490007
19. Door Hinge for 28" x 47" door:
Silver w/spring & cover
1911002
Silver Hinge Cover 1990008
Spring-Load Kit (Kason 220 hinge) 1990002
20. "ICE" Decals (Red) One Set
"ICE" Decals (Blue) One Set
1070074
1070070
21. Rain Shield for 27" x 46" solid door 5120098-5
22. Ice Pallet 22" x 28" Black 1050079
23. LED lamp (2’ T8 cool white clear) 1216009
24. Condensate evaporator assy. for
automatic defrost models (White)
5349040
25. Cond. evaporator heat element 125W 1261004
26. Merchandiser leveling kit 4 pc
5350029
Note: Providing the cabinet model and serial number will aid in identifying parts for a specific merchandiser.
Return authorized parts to this address: Leer, Inc.
206 Leer St.
New Lisbon, WI 53950
- Contact Leer Merchandiser Customer Service Dept. to obtain a Return Material Authorization (RMA) Number.
NOTE: Leer electrical and refrigeration parts are installed in compliance to UL Standard 471. Replacement parts that are not UL Certified or are
not identical to the OEM installed part, will void the merchandiser’s UL Listing and/or the Factory warranty per "General Provisions” of the
accompanying warranty statement.
15
Upright Models
Slant Models
Note: LP models are similar in design to slant models except for refrigeration location.
16
Warranty
ICE MERCHANDISERS: Seller warrants the merchandiser under normal use and service, for one (1) year for
the component parts (to be shipped by seller), and ninety (90) days for repair labor from the date of original
shipment. The merchandiser compressor motor is warranted for five (5) years from the date of original
shipment. SELLER MUST BE CONTACTED AND PROVIDED A MERCHANDISER SERIAL NUMBER
FOR WARRANTY CLAIM. This applies only to goods installed in the United States, Canada or Mexico.
Seller’s obligation under this warranty shall be limited to repair (subject to the limitations below) or
replacement of any part(s), F.O.B. Seller’s factory, which prove(s) defective within the applicable warranty
period. Seller reserves the right to inspect defective part(s) and may at Seller’s discretion require return of
part(s) to Seller’s factory for inspection. The determination as to whether any defect exists shall be made in
Seller’s sole judgement.
GENERAL PROVISIONS APPLICABLE TO ALL WARRANTIES AND PRODUCTS: Seller shall not
be liable for any breach of any express warranty set forth above unless Seller is informed immediately upon the
discovery of defective part(s). The warranties described above are not assignable and shall operate only in favor
of the original buyer/user. In event of any claim for breach of express warranty, Seller shall be responsible for
labor charges for repair or replacement of any defective part(s) or assembly only for defects reported to Seller
within ninety (90) days after the date of installation. ALL LABOR CHARGES SHALL BE AUTHORIZED OR
APPROVED BY SELLER PRIOR TO THE REPAIR OR REPLACEMENT OF PART(S). In all other events,
Seller shall not be responsible for any labor charges. Labor charges shall only include standard straight time
labor hours at the site of product installation, and shall exclude charges for travel time, mileage, or other
premium charges. These warranties shall not apply to any goods, or any part thereof, which may have been
subject to any damage in transit, accident, negligence, abuse or misuse, unauthorized alteration or repair, acts of
nature or failure to follow any of the Seller’s manuals or instructions, if in Seller’s sole judgement, such act,
omission or event has detrimentally affected the physical condition, use or operating qualities of the product.
SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, BY REASON OF LAW, STATUE OR
OTHERWISE, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE OR PURPOSE, AND ALL IMPLIED WARRANTIES ARE HEREBY DISCLAIMED.
SELLER SHALL NOT BE LIABLE FOR LOSS OF GOODS, MERCHANDISE OR OTHER PROPERTY,
OR LOSS OF PROFITS, RESULTING FROM PRODUCT DEFECTS. IN NO EVENT SHALL SELLER’S
LIABILITY UNDER ANY CIRCUMSTANCES FOR ANY BREACH OF CONTRACT OR FOR ANY
OTHER CLAIM BY BUYER AGAINST SELLER EXCEED THE CONTRACT PRICE OF THE GOODS
SOLD HEREUNDER WITH RESPECT TO WHICH SUCH CLAIM ARISES.
MODEL NO. ______________________
SERIAL NO. ______________________